The key role of Hirose DF56-30P-0.3SD connector in micro coaxial cable assemblies

As electronic devices continue to develop towards thinness and high speed, the value of micro coaxial cables in internal interconnection systems is increasingly prominent. In order to achieve high-speed, low-loss, and low-interference signal transmission within limited space, the selection of connectors is crucial. Hirose Electric's DF56 series is a high-density interface solution specifically designed for micro coaxial cables, with the DF56-30P-0.3SD standing out among many applications due to its compact size and reliable performance.

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Introduction to Hirose DF56-30P-0.3SD model

Hirose DF56-30P-0.3SD(51) belongs to the DF56 series of connector heads, which is specially developed for high-speed signal transmission of miniature coaxial cables. This model adopts a 0.3 mm small pitch design, achieving a 30-pin layout within an extremely small volume, making it particularly suitable for electronic products with limited space and complex wiring.

Main parameters are as follows:

Model: DF56-30P-0.3SD(51); Structure Type: Plug; Pin Count: 30; Pitch: 0.3 mm; Number of Rows: Double Row; Mounting Method: Inline
Welding method: welding; wire gauge compatibility: AWG 42-46; rated voltage: 30 V AC/DC; rated current: 0.2 A.
The DF56-30P-0.3SD achieves a good balance between signal integrity, connection reliability, and miniaturized structures, and is widely used as a standard interface in various types of miniaturized coaxial cable solutions.

 

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Micro coaxial cable, with its fine coaxial design, possesses several application characteristics: 1. High Frequency Transmission: It is capable of transmitting high-frequency signals with minimal loss and interference. 2. Miniaturization: Its compact size allows for easy integration into space-constrained environments. 3. Low Signal Loss: The coaxial structure effectively shields the signal from external electromagnetic interference, ensuring signal integrity. 4. Stable Performance: The cable maintains stable performance over a wide temperature range and harsh environments. 5. Easy Installation: The small diameter of the cable makes it easy to install and lay out in complex wiring systems. 6. Low Cost: As a cost-effective solution, it offers a competitive price compared to other high-performance cables. 7. Diverse Applications: It is widely used in aerospace, military, medical, communication, and other high-tech fields.

The extremely fine coaxial cable, due to its small outer diameter, high flexibility, and excellent high-frequency performance, has different usage requirements in various equipment. The following is a description of the differences in functional features in typical application scenarios:

Consumer electronics field

Smartphones, tablets, smart wearables, and other devices require multi-channel high-speed connections in confined spaces. Extremely thin coaxial cables can enable flexible wiring and reduce overall space occupation, further enhancing the freedom of structural design for the whole machine and the quality of signal transmission.

Communication equipment

High-speed data transmission requires cables to have low loss, high shielding efficiency, and stable impedance control. The excellent structural characteristics of ultra-fine coaxial cables enable them to carry high-speed differential signals, meeting the signal integrity requirements of base station communication modules, wireless terminals, and other devices.

Medical equipment

Portable or miniaturized medical products require cables to have high flexibility, bend resistance, reliability, and durability, while ensuring stable signal transmission under high-frequency conditions. Extremely thin coaxial cables have obvious advantages in scenarios such as probes and detection modules.

The performance requirements for extremely fine coaxial cables vary significantly among different applications, while the DF56 series connectors can provide a stable and reliable mating method, ensuring that the cables maintain excellent mechanical and electrical performance in actual operating environments.


As an important interface for connecting miniature coaxial cable bundles, the DF56-30P-0.3SD exhibits professional-grade quality in structural design, durability, and signal performance. Its miniaturized size is suitable for high-density modules, and its stable terminal structure and welding solution ensure reliable contact over long-term use. With the development of equipment towards higher speed and precision, miniature coaxial cable bundles will continue to play a key role in internal interconnection systems, and the DF56 series connectors will become an important basic component supporting these innovative products, bringing better design options and production flexibility to terminal manufacturers.

I amSuzhou Huichengyuan Electronic Technology, focusing on the design, processing and customization of high-speed cable harnesses and ultra-thin coaxial cable harnesses for a long time, committed to providing stable and reliable high-speed interconnection solutions. Welcome to consult your requirements:Manager Yin 18913280527 (WeChat number same)。